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Ключевые слова:
adult, antibiotic, care, clinic, closeup, concept, dice, disease, doctor, dose, epidemic, flu, gloves, health, health care, healthcare, hospital, illness, immunity, immunization, infection, injection, medical, medicine, nurse, pandemic, patient, pharmacy, pneumonia, prevention, protection, research, risk, science, scientist, syringe, test, therapy, treatment, vaccination, vaccine, virus,